I'd be up for a game except my cab is not connected to the internet. I'm wondering how many people actually have their cabs connected to the net?
I too use a WiFi NIC in my cab. Surfing this site from the cab is the only way to go! It's great for updating software, adding ROMs, and troubleshooting (my machine, anyway, is a forever work in progress). I can't imagine a PC without Internet connectitivty -- dedicated MAME machine or no. I'd spend too much time burning CDs to shuttle software to the cabinet to make it worthwhile.
I don't use it to play network games though. I should try that.